Timken Quick-Flex® Couplings

Better Performance. Less Maintenance.

Durability for the Long HaulWhen your equipment operates in harsh environments, you need coupling products you can count on. Timken Quick-Flex® elastomeric couplings can withstand harsh conditions, yet need minimal maintenance. They’re easy-to-install and require no lubrication. With a lifespan that can match that of your equipment, you can keep your overall cost of ownership competitively low.

Your ValueTimken Quick-Flex couplings can directly replace most coupling configurations, thanks to our design’s versatility. Plus, you won’t need large inventories of spare parts for couplings – the only part you’ll need is a urethane insert that can be replaced in just a few minutes without removing the hubs.

DurabilityThere’s no metal-to-metal contact with Timken Quick-Flex couplings, so you’ll save money by avoiding damage to hubs or other metal components. For harsh environments, including wash-downs for food processing, we offer a stainless-steel version of each coupling.

More UptimeYour hubs and metal components can remain intact when you use Timken Quick-Flex couplings. Our design helps eliminate interference between coupling hubs that can damage your equipment. As needed, you can replace the urethane insert quickly and easily without removing the hubs.

Innovative DesignOur couplings withstand up to 2 degrees of misalignment, and they dampen vibration and shock loads in your equipment.

Reduced InventoryThe versatility of the Timken Quick-Flex design promotes standardization across your plant, reducing the need to stock multiple coupling styles and configurations.

ApplicationsMotor to gearbox (low torque/high speed)Gearbox to driven equipment (high torque/low speed)Motors to pumpsAny drive shaft to a driven shaft

Save Time and Money with Quick-Flex Couplings

Jaw Grid Gear Chain Tire Quick-Flex Coupling Coupling Coupling Coupling CouplingQuick-Flex Comparison

Standard CouplingsShown with high-speed cover

Single-Ended Spacer CouplingsShown with low-speed split cover

Double-Ended Spacer CouplingsShown with high-speed split cover

Splined Hub CouplingsShown with high-performance split cover

Solutions for Your Needs

Solid and split covers are designed to accomodate higher speeds and increased torque.

Inherently balanced from precision machining for high-speed applications.

Design dampens torsional vibration and shock to help extend life of the coupling and surrounding components.

Timken inserts help reduce downtime and replacement costs, because inserts can be replaced without moving or disassembling the driving or driven equipment.

Whatever your application demands, you’ll find a wide range of Timken couplings to suit your needs. Choose from multiple insert and cover configurations that withstand some of the most extreme environments.

Twelve families ranging from bore sizes of 9.4 mm to 285 mm, 0.37 in. to 11.25 in.

Designed for continuous torque levels from 0.043 kNm to 188.8 kNm, 377 in.-lbs. to 1,670,826 in.-lbs.

Designed for peak torque levels from 0.085 kNm to 377.5 kNm, 754 in.-lbs. to 3,341,562 in.-lbs.

Couplings accept shaft misalignment, up to 2 degrees.

Split cover options help resist axial separating force under high torque.

Standard and double-ended spacer couplings available for shaft separations of 25.4 mm to 3,048 mm, 1 in. to 120 in., for increased application acceptance.

Four bore options available to meet customers’ needs; 1) Bored, keyed and set screws style – clearance and interference fit; 2) Bushing style; 3) Splined style; and 4) Mill motor style.

Four insert choices for varying torque needs and temperature ranges up to 177° C , 350° F.

Easy to Replace Without Moving Hubs • • • •

High and Low Torque Ratings • •

High-Speed Capability • •

Low Lifetime Cost •

Hubs Not Damaged When Urethane Inserts Need to be Replaced

No Lubrication Needed • • •

No Hub Teeth Wear •

Cushioned Shock • • • •

Compact Design • • •

• •

Choose Quick-Flex Couplings

Standard CouplingsStandard Couplings

Double-Ended Spacer CouplingsDouble-Ended Spacer Couplings

Steel and Metal MillsAggregate Mining

Steel and Metal MillsAggregate Mining

Powerful Connections

(1) Based on Timken Quick-Flex coupling with split cover and black elastomeric insert(2) Average maximum torque rating from competitive gear couplings

Timken Quick-Flex Couplings transmit higher levels of torque in most cases, compared with the competitive averaged gear coupling ratings. Plus, the elastomeric coupling never needs lubrication because there’s no metal-to-metal contact.

about our commitment to quality by visiting www.timken.com, keyword “Quality.”

Quick-Flex InsertsStandard Red InsertRelatively soft urethane excels in urethane excels in vibrational dampening and cushioning of shock loads.shock loads.

Use in reversing Use in reversing applications or applications or applications with quick starting and stopping of high-stopping of high-inertial loads.inertial loads.

High Torque Blue InsertRelatively stiff urethane provides moderate flexibility and vibrational dampening.

Use in applications with moderate to high torque, such as gear, grid or chain-style couplings.

High Temperature White InsertWithstands application Withstands application temperatures up to temperatures up to 177° C, 350° F. 177° C, 350° F. Provides torque Provides torque capabilities similar to the Quick-Flex blue insert.blue insert.

Highest Torque Black InsertStiffest urethane.

Use in applications with very high torque, such as gear-style couplings.

www.timken.com The Timken team applies their know-how to improve the reliability and performance of machinery in diverse markets worldwide. The company designs, makes and markets high-performance steel as well as mechanical components, including bearings, gears, chain and related mechanical power transmission products and services.

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Industrial Sectors: Find out more

Quick-Flex Quick-Flex Couplings Quick-Flex Couplings Gear Gear Coupling Torque Series Maximum Torque(1) Maximum Speed(1) Coupling Size Maximum Torque(2) Improvement kNm kNm in.-lbs.

r/min in.-lbs.

QF25

1.4 1 1.1

33% 12,449

7000 9,360

QF50

3.0 6000

1.5

2.1 41%

26,479 18,748

QF100 6.1

4800

2 3.7

62% 53,642 33,094

QF175 10.0

4200

2.5 6.7

49% 88,257 59,270

QF250 13.4

3800

3 11.1

21% 118,930 98,152

QF500 24.8

3400

3.5 17.3

43% 219,429 153,316

QF500 24.8

3400

4 27.9

0% 219,429 246,537 QF1000

35.0 3000

4.5

38.2 0%

310,466 337,794 QF1890

62.5 2800

5 52.9

18% 553,982 468,322 QF1890

62.5 2800

5.5

69.3 0%

553,982 613,125 QF3150

98.3 2000

6 87.1

13% 871,139 770,471 QF10260

188.6 1200

7 133.8

41% 1,670,826 1,183,950 QF10260

188.6 1200

8 172.6

9% 1,670,826 1,527,375 QF10260

188.6 1200

9 302.8

0% 1,670,826 2,680,000